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Relay Shield v2.0 5V 4-Channel Relay Module for Arduino UNO / MEGA2560
Relay Shield is a small current signal control module£¬ can achieve MCU to control large power device; It lead out the UART interface which can be connect with Serial Bluetooth module or Serial Wi-Fi module and D2 / D3 that can connect to infrared receiver module or 4-digit Display. So your phone can control the home appliances. Widely used in smart home project; Features: - Standard shield interface£¬ perfectly compatible with Arduino UNO / MEGA2560 / Leonardo. - Nubmer of Channel: 4; - Active level: High level ; - Operating voltage: 5V - Operating Current: 70mA(Each channel) - Max Switching Voltage: 250VAC / 30VDC - Max Switching Current: 3A - Onboard red LED indicator ; - Great for DIY Project. Application: Smart home project